Sterling Silver Halo Crest Ring Sizes 5 to 9 in Various Gemstones Features 9x6mm, 1 carat pear-shaped genuine Amethyst with a faceted finish to reflect light to perfection Timeless teardrop halo design All gemstones and 925-Stamped Sterling Silver metal used are authenticated and as marked. Includes Certificate of Authenticity. For Amazon-fulfilled orders Certificate is available upon request. Birthstone for the month of February Perfect gift for Birthdays, Mothers Day, Valentines, Anniversary, Bridesmaids, Graduation, Christmas or just about any other gift giving occasion.